noun🔗ShareA specimen of the species Archaeopteryx lithographica, being the earliest and most primitive known bird, representing a transition in the evolution of dinosaurs to birds."While studying fossils, Sarah learned that the archaeopteryx had both feathers like a bird and teeth like a reptile, showing its place in the evolution from dinosaurs. "archaeologybiologyorganismanimalbirdhistoryscienceChat with AIVocabulary GamePractice Reading
